摘要： 针对WEP、TKIP使用IV向量存在的安全隐患问题，提出一种将混沌映射与RC4算法相结合的加密算法，并给出相应的密钥管理方案，同时对该加密算法的密钥空间、随机性及加密效果进行分析。基于混沌的RC4算法利用混沌随机序列作为种子密钥，提高密钥的随机性，增加破译难度，且密钥变换空间相比WEP、TKIP得到较大的拓展。

关键词: 混沌, RC4算法, 流加密, 密钥发生器

Abstract: Aiming at the problem that vector IV of WEP and TKIP exists security risks, an encryption algorithm based on chaos and RC4 algorithm is proposed, corresponding key management is followed, while making analysis of the key space, randomicity and encryption effect. The algorithm based on chaos and RC4 algorithm uses chaos random sequence as seed key to improve the randomness of seed key, increases the difficult of deciphering, and compared with WEP and TKIP, the space of key transformation is expanded.

Key words: chaos, RC4 algorithm, stream encryption, key generator

中图分类号: 

• TP309